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US 4,732,364 AGranted
Wear resistant diamond cladding
AssigneeAmeron Iron Works USA, Inc.
InventorsFritz O. Seger, David R. Hall
Life of this patent
Estimating the term…
Abstract
An erosion resistant article is formed by cladding a substrate with tiles having a surface layer of polycrystalline material such as diamond or cubic boron nitride. The tiles may be entirely polycrystalline diamond or may have a backing of cemented tungsten carbide. Such an article can be trim for a high pressure valve wherein a sleeve is partly lined with polycrystalline diamond tiles and a plug is clad with polycrystalline diamond tiles.
Claims30
A wear resistant article comprising:
- a rigid substrate;
- and
- a plurality of separate tiles in sufficiently close side by side relation for forming an approximately continuous layer secured to at least one surface of the substrate, each of the tiles comprising at least a surface layer of polycrystalline material selected from the group consisting of diamond and cubic boron nitride, the surface layers of adjacent tiles being parallel to the surface of the substrate to which they are secured to form an approximately continuous wear resistant surface on the article and the side edges of adjacent tiles being sufficiently close to each other to prevent significant erosion of the substrate between the tiles.
A wear resistant article comprising:
- a rigid substrate;
- and
- a plurality of separate tiles in sufficiently close side by side relation for forming an approximately continuous layer secured to at least one surface of the substrate, each of the tiles comprising at least a surface layer of polycrystalline material selected from the group consisting of diamond and cubic boron nitride, the surface layers of adjacent tiles being parallel to the surface of the substrate to which they are secured to form an approximately continuous wear resistant surface on the article and the side edges of adjacent tiles being sufficiently close to each other to prevent significant erosion of the substrate between the tiles;
- and
- wherein at least the outer face of the surface layer is a non-flat surface of revolution.
2 more elements
A control portion of the trim of a flow control valve comprising:
- a rigid substrate;
- and
- a plurality of separate tiles in sufficiently close side by side relation for forming an approximately continuous layer secured to at least one surface of the substrate, each of the tiles comprising at least a surface layer of polycrystalline material selected from the group consisting of diamond and cubic boron nitride, the surface layers of adjacent tiles being parallel to the surface of the substrate to which they are secured to form an approximately continuous wear resistant surface on the article and the side edges of adjacent tiles being sufficiently close to each other to prevent significant erosion of the substrate between the tiles;
- and being sufficiently close to each other to prevent significant erosion of the substrate between the tiles.
1 more element
A wear resistant article comprising:
- a rigid substrate;
- and
- a plurality of separate tiles in sufficiently close side by side relation for forming an approximately continuous layer secured to at least one surface of the substrate, each of the tiles comprising at least a surface layer of polycrystalline material selected from the group consisting of diamond and cubic boron nitride, the surface layers of adjacent tiles being parallel to the surface of the substrate to which they are secured to form an approximately continuous wear resistant surface on the article and the side edges of adjacent tiles being sufficiently close to each other to prevent significant erosion of the substrate between the tiles;
- and
- wherein at least a portion of the tiles has concave side faces.
2 more elements
A wear resistant article comprising:
- a rigid substrate;
- and
- a plurality of separate tiles in sufficiently close side by side relation for forming an approximately continuous layer secured to at least one surface of the substrate, each of the tiles comprising at least a surface layer of polycrystalline material selected from the group consisting of diamond and cubic boron nitride, the surface layers of adjacent tiles being parallel to the surface of the substrate to which they are secured to form an approximately continuous wear resistant surface on the article and the side edges of adjacent tiles being sufficiently close to each other to prevent significant erosion of the substrate between the tiles;
- and
- wherein at least a portion of the tiles has a dovetail portion adjacent the substrate.
2 more elements
A wear resistant article comprising:
- a rigid substrate;
- and
- a plurality of separate tiles in sufficiently close side by side relation for forming an approximately continuous layer secured to at least one surface of the substrate, each of the tiles comprising at least a surface layer of polycrystalline material selected from the group consisting of diamond and cubic boron nitride, the surface layers of adjacent tiles being parallel to the surface of the substrate to which they are secured to form an approximately continuous wear resistant surface on the article and the side edges of adjacent tiles being sufficiently close to each other to prevent significant erosion of the substrate between the tiles;
- and
- wherein the side of at least one of a pair of adjacent tiles is tapered so that the surface layers of the adjacent tiles can abut and a tapered gap is left between the adjacent tiles.
2 more elements
A wear resistant article comprising:
- a rigid substrate;
- and
- a plurality of separate tiles in sufficiently close side by side relation for forming a substantially continuous tile layer, each tile having one face secured to a surface of the substrate, each of the tiles comprising at least a surface layer opposite to the face secured to the substrate and comprising a polycrystalline material selected from the group consisting of diamond and cubic boron nitride, and a side of at least some of the tiles being non-perpendicular to the exposed face of such a tile, at least a portion of the sides of such tiles being next to each other for tessellating a surface of the article with a substantially continuous wear resistant layer.
An orifice-defining assembly for an adjustable valve comprising:
- a plug having a portion clad with a wear resistant layer comprising a plurality of separate tiles in sufficiently close side by side relation for forming an approximately continuous layer, each of the tiles having a surface of polycrystalline material;
- a sleeve having a bore coaxial with the plug, the bore having a portion clad with a wear resistant layer comprising a plurality of tiles in side by side relation, each of the tiles having a surface of polycrystalline material;
- the plug being movable axially through the bore between opposite end positions for controlling the rate of fluid flow through the valve;
- the sides of tiles on the plug being sufficiently close to each other to prevent significant erosion of the substrate between adjacent tiles;
- the sides of tiles on the sleeve being sufficiently close to each other to prevent significant erosion of the substrate between adjacent tiles;
- and
- the polycrystalline material being selected from the group consisting of diamond and cubic boron nitride.
4 more elements
Dependencies are inferred from the claim text.